| I got the rubber mats indicated in the first post of this thread.
I've had them in my car for a little over a week and they haven't moved or bunched up any (I drive my Tesla daily). I didn't install the provided retention clips. It looks like the mats stay in place fine because they grip the floor well (due to the traction, pliability and weight of the rubber) and are the right size to completely fill each foot-well.
I've been happy with them so far. | 
Linear Mode
